<!--
 * @Author: your name
 * @Date: 2021-02-12 21:20:39
 * @LastEditTime: 2021-02-12 22:03:45
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \vue_shop\src\components\report\Report.vue
-->
<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
             <!-- 2.为 ECharts 准备一个具备大小（宽高）的 DOM -->
    <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>
<script>
// 1.导入echarts
// import echarts from 'echarts'
import * as echarts from 'echarts';
import _ from 'lodash'
export default {
  data() {
    return {
      // 需要合并的数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  
  created() {},
//   此时页面已经渲染完毕了
 async mounted(){
       // 3.基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
      
      const {data:res} = await this.$http.get('reports/type/1')
      if(res.meta.status!==200){
        return this.$message.error('获取折线图数据失败！')
      }
        // 4.指定图表的配置项和数据
      const result =  _.merge(res.data,this.options)
          // 5.显示图表。
        myChart.setOption(result);
  },
  methods: {},
}
</script>
<style lang="less" scoped>
</style>
